<template>
	<view class="goods-detail-container">
		<swiper class="detail-swiper" :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000"
			:circular="true">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<img class="detail-swiper-img" :src="item.pics_big" @click="preview(i)">
			</swiper-item>
		</swiper>

		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<view v-if="goods_info.goods_name">
				<!-- 商品价格 -->
				<view class="price">￥{{ goods_info.goods_price }}</view>
				<view class="goods-info-body">
					<view class="goods-name">{{ goods_info.goods_name }}</view>
					<view class="favi">
						<uni-icons type="star" size="18" color="gray"></uni-icons>
						<text>收藏</text>
					</view>
				</view>
				<view class="yf">快递：免运费</view>
			</view>
		</view>
		
		<!-- 商品详细信息 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<!-- 商品导航组件 -->
		<view class="goods_nav">
		  <!-- fill 控制右侧按钮的样式 -->
		  <!-- options 左侧按钮的配置项 -->
		  <!-- buttonGroup 右侧按钮的配置项 -->
		  <!-- click 左侧按钮的点击事件处理函数 -->
		  <!-- buttonClick 右侧按钮的点击事件处理函数 -->
		  <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import { mapState, mapMutations, mapGetters } from "vuex"
	
	export default {
		data() {
			return {
				goods_info: {},
				// 左侧按钮组的配置对象
				options: [{
				  icon: 'shop',
				  text: '店铺'
				}, {
				  icon: 'cart',
				  text: '购物车',
				  info: 5
				}],
				// 右侧按钮组的配置对象
				buttonGroup: [{
					text: '加入购物车',
					backgroundColor: '#ff0000',
					color: '#fff'
				  },
				  {
					text: '立即购买',
					backgroundColor: '#ffa200',
					color: '#fff'
				  }
				]
				
			};
		},
		computed: {
			...mapState('m_cart', ['cart']),
			...mapGetters('m_cart', ['total'])
		},
		watch: {
			total: {
				handler(newVal){
					const findResult = this.options.find(x => x.text === "购物车");
					if(findResult){
						findResult.info  = newVal;
					}
				},
				immediate: true
			}
		},
		onLoad(options) {
			const id = options.goods_id;
			this.getGoodsDetail(id);
		},
		methods: {
			...mapMutations('m_cart', ['addToCart']),
			async getGoodsDetail(goods_id) {
				const {
					data: res
				} = await uni.$http.get("/api/public/v1/goods/detail", {
					goods_id
				});
				if (res.meta.status !== 200) return uni.$showMsg();
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg');
				this.goods_info = res.message;
			},
			preview(i) {
				uni.previewImage({
					// 预览时，默认显示图片的索引
					current: i,
					urls: this.goods_info.pics.map(x => x.pics_big)
				})
			},
			onClick(e){
				if(e.content.text === '购物车'){
					uni.switchTab({
						url: "/pages/cart/cart"
					})
				}
			},
			buttonClick(e){
				if(e.content.text ==='加入购物车'){
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true
					}
					
					this.addToCart(goods);
				}
			}
		}
	}
</script>

<style lang="scss">
	.goods-detail-container{
		padding-bottom: 50px;
	}
	.detail-swiper {
		width: 750rpx;
		height: 750rpx;

		.detail-swiper-img {
			width: 100%;
			height: 100%;
		}
	}

	.goods-info-box {
		padding: 10rpx;
		padding-right: 0;

		.price {
			color: #c00000;
			font-size: 18px;
			margin: 10px 0;
		}

		.goods-info-body {
			display: flex;
			justify-content: space-between;

			.goods-name {
				font-size: 13px;
				padding-right: 10px;
			}

			.favi {
				width: 120px;
				font-size: 12px;
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;
				border-left: 1px solid #efefef;
				color: gray;
			}
		}

		.yf {
			margin: 10px 0;
			font-size: 12px;
			color: gray;
		}

	}

	.goods_nav {
	  // 为商品导航组件添加固定定位
	  position: fixed;
	  bottom: 0;
	  left: 0;
	  width: 100%;
	}
</style>
